Finding the Fourth Proportional to 745,206.84, 1,028,385.60 and 405,675
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Solution
The fourth proportional to 745,206.84, 1,028,385.60 and 405,675 is: 559,831.59
Step by Step Solution
- Step 1: Write the proportion equation
745,206.84 : 1,028,385.60 = 405,675 : x - Step 2: Convert to fraction form
745,206.84/1,028,385.60 = 405,675/x - Step 3: Cross multiply
745,206.84x = 1,028,385.60 × 405,675 - Step 4: Simplify right side
745,206.84x = 417,190,328,280 - Step 5: Solve for x
x = 417,190,328,280/745,206.84 - Step 6: Final answer
x = 559,831.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.